Features and Benefits of the McDonnell & Miller Series TC-4

  • For hot water boilers
  • Simplifies ASME CSD-1A. code mandated testing of low water cut-offs by eliminating the need to drain the system
  • Includes one upper and one lower valve for mounting at crosses in equalizing lines
  • Restricts water flow when the low water cut-off’s blow down valve is open
  • Adjustable built-in vacuum breaker in upper valve provides rapid evacuation of water from the float chamber
  • 1? NPT
  • Maximum temperature 250°F (121°C)
  • Maximum pressure 160 psi (11 kg/cm2)

Extra product images

McDonnell & Miller Series TC-4

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